ZJ0273 propyl 424,6dimethoxypyrimidin2yloxybenzylaminobenzoate, ZJ0702 isopropyl 424,6dimethoxypyrimidin2yloxybenzylaminobenzoate, ZJ0777 2bromoN24,6dimethoxypyrimidin2yloxybenzylaniline, and SIOC0163 5bromoN24,6dimethoxypyrimidin2yloxybenzylpyridin2amine are active ingredients in oilseed rape herbicides. The middle aromatic ringdeuterated form of ZJ0273 was synthesized from 2H6phenol and have been successfully used as tracer in its metabolism and degradation study. The methoxyldeuterated forms of four ingredients were synthesized from 2H4methanol, respectively, and they could be used as internal standards in quantitation of herbicide residue in rapeseed and its downstream foodstuff by using HPLCMSMS. Copyright © 2010 John Wiley & Sons, Ltd.